package com.zks.second.client;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;

import java.net.InetSocketAddress;

public class EchoClient {
    public static void main(String[] args) throws Exception{
        EchoClient echoClient = new EchoClient();
        echoClient.start();
    }

    public void start() throws Exception{

        EventLoopGroup group=new NioEventLoopGroup();
        try {

            Bootstrap bootstrap=new Bootstrap();
            bootstrap.group(group).
                    channel(NioSocketChannel.class).
                    remoteAddress(new InetSocketAddress("localhost",8020)).
                    handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new ChannelInitializer<SocketChannel>() {
                                @Override
                                protected void initChannel(SocketChannel ch) throws Exception {
                                    ch.pipeline().addLast(new EchoClientHandler());
                                }
                            });
                        }
                    });

            ChannelFuture sync = bootstrap.connect().sync();
            sync.channel().closeFuture().sync();

        }catch (Exception e){
            e.printStackTrace();
        }finally {
            group.shutdownGracefully().sync();
        }

    }
}
